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38

Sep 18, 2013
09/13

by
Lars Brucher

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xloops is a program package that calculates Feynman diagrams by using computer algebra systems. In this paper it is shown which problems to be solved by computer algebra arise during such calculations, and how this problems are handled in the framework of xloops.

Source: http://arxiv.org/abs/hep-ph/0002028v1

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9.0

Jan 28, 2020
01/20

by
H E Brucher

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71

Sep 21, 2013
09/13

by
L. Brücher; R. Santos

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The most general Two Higgs Doublet Model potential without explicit CP violation depends on 10 real independent parameters. Excluding spontaneous CP violation results in two 7 parameter models. Although both models give rise to 5 scalar particles and 2 mixing angles, the resulting phenomenology of the scalar sectors is different. If flavour changing neutral currents at tree level are to be avoided, one has, in both cases, four alternative ways of introducing the fermion couplings. In one of...

Source: http://arxiv.org/abs/hep-ph/9907434v2

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12

Feb 22, 2020
02/20

by
E Lehmann; H Brücher

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62

Sep 20, 2013
09/13

by
L. Brücher; J. Franzkowski; A. Frink; D. Kreimer

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The program package XLOOPS calculates massive one- and two-loop Feynman diagrams. It consists of five parts: i) a graphical user interface ii) routines for generating diagrams from particle input iii) procedures for calculating one-loop integrals both analytically and numerically iv) routines for massive two-loop integrals v) programs for numerical integration of two-loop diagrams. The package relies on the application of parallel space techniques. The treatment of tensor structure and the...

Source: http://arxiv.org/abs/hep-ph/9611378v1

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33

Sep 18, 2013
09/13

by
A. Barroso; L. Brucher; R. Santos

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The most general Two Higgs Doublet Model potential without explicit CP violation depends on 10 real independent parameters. There are two different ways of restricting this potential to 7 independent parameters. This gives rise to two different potentials, $V_{(A)}$ and $V_{(B)}$. The phenomenology of the two models is different, because some trilinear and quartic Higgs couplings are different. As an illustration, we calculate the decay width of $h^0 \to \gamma \gamma$, where precisely due to...

Source: http://arxiv.org/abs/hep-ph/9901293v2

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37

Sep 18, 2013
09/13

by
Lars Brucher; Johannes Franzkowski

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We present a new program package for calculating one-loop Feynman integrals, based on a new method avoiding Feynman parametrization and the contraction due to Passarino and Veltman. The package is calculating one-, two- and three-point functions both algebraically and numerically to all tensor cases. This program is written as a package for Maple.

Source: http://arxiv.org/abs/hep-ph/0002030v2

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61

Sep 19, 2013
09/13

by
L. Brücher; J. Franzkowski; D. Kreimer

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We present an improved version of our program package oneloop which -- written as a package for MAPLE -- solves one-loop Feynman integrals. The package is calculating one-, two- and three-point functions both algebraically and numerically to any tensor rank. In addition to the original version oneloop 2.0 also calculates infrared divergent integrals. Higher powers of propagator terms and the $O(\eps)$ parts relevant for two-loop calculations are now supported.

Source: http://arxiv.org/abs/hep-ph/9709209v1

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800

Sep 18, 2013
09/13

by
Fabian Pedregosa; Gaël Varoquaux; Alexandre Gramfort; Vincent Michel; Bertrand Thirion; Olivier Grisel; Mathieu Blondel; Peter Prettenhofer; Ron Weiss; Vincent Dubourg; Jake Vanderplas; Alexandre Passos; David Cournapeau; Matthieu Brucher; Matthieu Perrot; Édouard Duchesnay

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Scikit-learn is a Python module integrating a wide range of state-of-the-art machine learning algorithms for medium-scale supervised and unsupervised problems. This package focuses on bringing machine learning to non-specialists using a general-purpose high-level language. Emphasis is put on ease of use, performance, documentation, and API consistency. It has minimal dependencies and is distributed under the simplified BSD license, encouraging its use in both academic and commercial settings....

Source: http://arxiv.org/abs/1201.0490v2

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40

Sep 18, 2013
09/13

by
Lars Brucher; Rui Santos

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The most general Two Higgs Doublet Model potential without explicit CP violation depends on 10 real independent parameters . Excluding spontaneous CP violation results in two 7 parameter models. Although both models give rise to 5 scalar particles and 2 mixing angles, the resulting phenomenology of the scalar sectors is different. If flavour changing neutral currents at tree level are to be avoided, one has four alternative ways of introducing the fermion couplings in both cases. In one of...

Source: http://arxiv.org/abs/hep-ph/0002027v1

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43

Sep 22, 2013
09/13

by
A. Barroso; L. Brucher; R. Santos

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Using the on-shell scheme and the general linear R_xi gauge we have calculated the one-loop amplitude W+ -> u_I d_j. In agreement with previous work we have shown that the Cabibbo-Kobayashi-Maskawa (CKM) matrix ought to be renormalized. We show how to renormalize the CKM matrix and, at the same time, obtain a gauge independent W decay amplitude.

Source: http://arxiv.org/abs/hep-ph/0004136v2

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48

Oct 22, 2014
10/14

by
Brucher, Bjorn LDM; Jamall, Ijaz S

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This article is from BMC Cancer , volume 14 . Abstract Background: Carcinogenesis is widely thought to originate from somatic mutations and an inhibition of growth suppressors, followed by cell proliferation, tissue invasion, and risk of metastasis. Fewer than 10% of all cancers are hereditary; the ratio in gastric (1%), colorectal (3-5%) and breast (8%) cancers is even less. Cancers caused by infection are thought to constitute some 15% of the non-hereditary cancers. Those remaining, 70 to...

Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4026115

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51

Sep 22, 2013
09/13

by
C. Bernhard; J. L. Tallon; E. Brücher; R. K. Kremer

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From magnetisation measurements we provide evidence that the ferromagnetic superconductor RuSr$_{2}$GdCu$_{2}$O$_{8}$ with \QTR{it}{T}$_{c}$=45 K and \QTR{it}{T}$_{M}$=137 K exhibits a sizeable diamagnetic signal at low temperature (\QTR{it}{T}

Source: http://arxiv.org/abs/cond-mat/0001041v1

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3.0

Aug 10, 2021
08/21

by
Brücher, K

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86
86

Oct 23, 2014
10/14

by
Brucher, Bjorn LDM; Lyman, Gary; van Hillegersberg, Richard; Pollock, Raphael E; Lordick, Florian; Yang, Han-Kwang; Ushijima, Toshikazu; Yeoh, Khay-Guan; Skricka, Tomas; Polkowski, Wojciech; Wallner, Grzegorz; Verwaal, Vic; Garofalo, Alfredo; D'Ugo, Domenico; Roviello, Franco; Steinau, Hans-Ulrich; Wallace, Timothy J; Daumer, Martin; Maihle, Nitah; Reid, Thomas J; Ducreux, Michel; Kitagawa, Yuko; Knuth, Alexander; Zilberstein, Bruno; Steele, Scott R; Jamall, Ijaz S

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This article is from BMC Cancer , volume 14 . Abstract Background: Since the “War on Cancer” was declared in 1971, the United States alone has expended some $300 billion on research, with a heavy focus on the role of genomics in anticancer therapy. Voluminous data have been collected and analyzed. However, in hindsight, any achievements made have not been realized in clinical practice in terms of overall survival or quality of life extended. This might be justified because cancer is not one...

Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3995593

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66

Sep 18, 2013
09/13

by
L. Brücher; J. Franzkowski; D. Kreimer

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The aim of XLOOPS is to calculate one-particle irreducible Feynman diagrams with one or two closed loops for arbitrary processes in the Standard model of particles and related theories. Up to now this aim is realized for all one-loop diagrams with at most three external lines and for two-loop diagrams with two external lines.

Source: http://arxiv.org/abs/hep-ph/9710484v2

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43

Sep 22, 2013
09/13

by
Lars Brücher; Petteri Keränen; Jukka Maalampi

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We study the prospects of detecting signals of a resonant scattering of high-energy cosmic neutrinos on electrons in the atmosphere. Such a process is possible through an s-channel exchange of a isotriplet scalar particle predicted by some particle physics theories. We estimate the event rates for a reference detector setup with plausible assumptions on the interaction strengths and energy resolutions. We find as the most promising process the resonance production of tau neutrinos whose...

Source: http://arxiv.org/abs/hep-ph/0011138v1

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15

Aug 11, 2020
08/20

by
Fabian Pedregosa; Gal Varoquaux; Alex; re Gramfort; Vincent Michel; Bertr; Thirion; Olivier Grisel; Mathieu Blondel; Peter Prettenhofer; Ron Weiss; Vincent Dubourg; Jake V; erplas; re Passos; David Cournapeau; Matthieu Brucher; Matthieu Perrot; douard Duchesnay

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Source: http://academictorrents.com/details/5ba4939a00a9b21629a0ad7d376898b768d997a3

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70

Jul 19, 2013
07/13

by
L. Brücher; J. Franzkowski; D. Kreimer

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We present a new program package for calculating one-loop Feynman integrals, based on a new method avoiding Feynman parametrization and the contraction due to Passarino and Veltman. The package is calculating one-, two- and three-point functions both algebraically and numerically to all tensor cases. This program is written as a package for Maple. An additional Mathematica version is planned later.

Source: http://arxiv.org/abs/hep-ph/9401252v1

1
1.0

Jan 19, 2021
01/21

by
Christoph Brücher (JW0nd3r)

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Just a smaller version of the original to match the size of smaller folding rulers.

Topics: Tool Holders & Boxes, stl, thingiverse

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61

Sep 18, 2013
09/13

by
C. Bernhard; J. L. Tallon; Ch. Niedermayer; Th. Blasius; A. Golnik; E. Brücher; R. K. Kremer; D. R. Noakes; C. E. Stronach; E. J. Ansaldo

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We have investigated the magnetic and the superconducting properties of the hybrid ruthenate-cuprate compound RuSr_{2}GdCu_{2}O_{8} by means of zero-field muon spin rotation- (ZF-$\mu $SR) and DC magnetization measurements. The DC-magnetisation data establish that this material exhibits ferromagnetic order of the Ru-moments ($\mu (Ru) \approx 1 \mu_{B}$) below T_{Curie} = 133 K and becomes superconducting at a much lower temperature T_c = 16 K. The ZF-$\mu $SR experiments indicate that the...

Source: http://arxiv.org/abs/cond-mat/9901084v2